Commit bfa3a9bb authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: keep stolen memory for arct 



Any dce register read back from arct is invalid. use hard code
stolen memory for arct until we validate the s3.

Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarLe Ma <Le.Ma@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d57c3d56

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

+3 −1
Original line number Diff line number Diff line
@@ -645,6 +645,7 @@ static bool gmc_v9_0_keep_stolen_memory(struct amdgpu_device *adev) 
	switch (adev->asic_type) {

	case CHIP_VEGA10:

	case CHIP_RAVEN:

	case CHIP_ARCTURUS:

		return true;

	case CHIP_VEGA12:

	case CHIP_VEGA20:
@@ -945,7 +946,7 @@ static int gmc_v9_0_gart_init(struct amdgpu_device *adev) 


static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)

{

	u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);

	u32 d1vga_control;

	unsigned size;



	/*
@@ -955,6 +956,7 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev) 
	if (gmc_v9_0_keep_stolen_memory(adev))

		return 9 * 1024 * 1024;



	d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);

	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {

		size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */

	} else {

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